The two male celebrities and the two athletes were part of a basketball-related variety show, so the two athletes were basketball players. One was the god hand of China, and the other one, a Chinese-American NBA member.
Both male celebrities were basketball enthusiasts as well.
Their interactions with the audience were also related to basketball.
A basketball net was placed in the middle of the stage, where the hosts and the four guests approached it.
"Everyone open your Tao Bao app and go to the 11/11 event page, the event depends if these four can land their shots. Each person will score once, so there will be quizzes in total. If you can guess them right, you'll win a large basketball gift package."
The host outlined the rules for the trivia, then told the four to send out their first player.
"I'll go first."
A guy standing next to Jay Chou volunteered and scored the first shot, causing a round of applause.